Advertising is everywhere, and now it's going to be on your iPhone apps. Apple has thrown down a direct challenge to Google's mainstay business of online advertising, announcing plans to introduce a mobile advertising platform called iAd, said Tom Krazit in CNET.com. The iAd platform will allow marketers to create advertisements that appear within apps for the AppleiPhone. The ads can be programmed to appear on the iPhone before the app begins playing. Apple hopes iAd will pry advertisers away from Google by offering them a chance to reach a captive audience using one of the premier mobile devices on the planet. As seen in The Week, what do you think about online advertising infiltrating your cell phone someday? Post your comment here!